Afghan men watch a television news report on U.S. President Barack Obama's State of the Union address in Kabul, Afghanistan Wednesday, Feb. 13, 2013. President Obama announced plans to withdraw more troops from Afghanistan and take steps to boost the fragile U.S. economy as he delivered a closely watched State of the Union address laying out his priorities for the year and for his newly begun second term in office. (AP Photo/Musadeq Sadeq)

International military officials are investigating two episodes in which as many as 11 Afghan civilians may have been killed in what appeared to be U.S.-led military actions.

In the more lethal episode, Afghan officials said 10 civilians were killed overnight in Kunar province in eastern Afghanistan in a village where two known Taliban commanders were visiting family members.

"Ten civilians were killed last night in a joint Afghan and American operation that took place in Chogam Valley in Shigal district," said Fazullah Wahidi, the provincial governor.

He said four women, one man and five children between the ages of 8 and 13 were killed; four teenagers were wounded, three of whom were girls.

Increasingly over the past two years, foreign insurgents, sometimes with links to al Qaeda and other non-Afghan groups, have taken refuge in Kunar and neighboring Nuristan province. Both provinces have a long border with Pakistan, and insurgents can hide easily in the rugged and forested mountain terrain.

Wahidi said the target of Kunar operation was a Taliban leader named Shahpour, "a known and really dangerous Afghan Taliban commander with links to al Qaeda operatives in Kunar" and another Taliban commander, known as "Rocketi," a Pakistani citizen from the Northwest Frontier province. Both men were killed in the attack.

Wahidi said the operation was not coordinated with Afghan security forces, but that locally hired Afghan paramilitaries were involved in the raid, which included an air strike and a ground operation. Sometimes other U.S. government agencies rather than the military use special commandos.

Maj. Adam Wojack, a spokesman for the International Security Assistance Force, said they had no information on the operation but "were aware of the reports" of civilian deaths and were looking into it.

Local officials in Kunar said that Shahpour was believed to have links to al Qaeda.

The other episode in which an Afghan civilian was killed by foreign troops occurred Tuesday during daylight hours.

It took place as NATO-led forces were checking a stretch of heavily traveled highway between Kandahar and Spin Boldak for explosives during a road clearance mission and shot at an oncoming car that did not stop when signaled to do so, Wojack said.

Wojack said that the forces had followed standard procedure of signaling to the car to stop. After the driver stopped, he then started to accelerate toward the convoy, at which point the ISAF soldier shot at the car, Wojack said.